emery



. B. EMERY.

Threshing Machine.

. Patented Maly` 5, 1868.

-l hun...`

Wneases N. PETERS, PHOTUUTHOGRAFMER, WASHINGTON, D C.

Theapron is sometimes-perforated similarly to the after-part`of the separator, a: w, in which case a chaff' and grain-board is inserted, as shown at T.

The chamber over the separator, enclosed by the side-boards J' and the cover 7c YZ, extends in front of the concave to the point w, where it opens downwards towards the feeding-table z. Up through this opening, and along over the top of the concave A', a strong current of air is drawn, by the current of'` air, straw, and grain which is thrown by the cylinder, carrying with it all the dust which rises from the straw as it is'fed to the cylinder, thus relieving thefeeder of a most disagreeable and unhealthy annoyance. y

The object of vibratinglthe 'separator and the shoe in opposite directions is to prevent the vibration of the whole machine itself. The'force of each vibrating part,.bcing counterbalanced by that of thc other, causes the machine to stand perfectly at rest, `relieving it from the destructive shocks which would result from the vibrating of so heavy'a mass within it withoutsuch neutralizing of the thrusts.

I am aware that machines havebeen made having an elevator situated similar to mine, but in such machines the shoe and separator were so connected as to vibrate in unison or together.

The tossing-forks 6 b are actuated by levers I I, which are made fast to the 'trunnionsof the fork-heads, whiie the upper end is held loosely in a stationary loop, so that when the separator vibrates,'carrying with it the forks, they are caused to vibrate in a. vertical direction, thus lif'tngandshaking the straw as it passes over them. 4

The separator, as it swings'outwards, also swings upwards, which combined motion causes the straw to 'move along towards and oft' its extremity without any other device.

Below'is a recapitulation of the letters of reference ouV the drawing, which accompany and make a part of this specification. A

A, threshing-cylinder. A', concave, (over cylinder.)

B, separator'. p G, shoe.

D, elevator. b, apron of separator.

a: @after-portion of separator. b b', tossingforks.

C', grain and chaboard. C C, sieves in shoe.

C, grain-board. E, graimspout.

F, trailing-spout. G suspender-s of separator. H H, 'Suspenders of shoe. I Llevers of tossing-forks.

J, side-boards. v M,.curtain.

N, beater. O, fan. v

P, connecting-rod of separator.` l Q, connecting-rode? shoe.

R, air-due from fan. S, raised edge of apron.

4#opening in front of edges. T,grain and chaff-board.

W, mouthof dust-flue. Y, bonnet or guide.

Y', adjusting-lever to' bonnet. Z, feeding-table. A

Having thus described my invention, what I claim as my invention, and desire to secure-by Letters Patent, isfl A 1. Combining, with a.self-cleaningjzhreshing-machine, (in which the shoe and the separator vibrate inopposite directions,) an endless straw-elevator, having an apron between it and the threshing-cylinder, arranged substantially as and for the purpose specified. Y

2. Deflecting th edgeS of -the apro'n upwards, substantially, as and for the purpose specified. 3. The beater N, in combination with the elevator D and apron b b, substantially as specified, (whetherthe 4shoe and the separator vibrate in opposite directions or in unison.)

V 4. The lever Y ofthe bonnet, whereby the bonnet may be adjusted from the outside of the machine, substantially as and forthe purpose specified. Y v I WM. B. EMERY.

Witnesses H. Colm, GaAs. Tnarcnnn. 

